Digital artwork in the style of a 19th-century Romantic oil painting:
Foreground/Midground: Chaotic Viking sea battle with longships and warriors in combat. Rich, warm colors and dramatic lighting.
Background: Turbulent sky with billowing clouds and patches of blue.
Painting Style: Loose, expressive brushstrokes mimicking oil paint texture. Visible impasto technique for depth.
New Element: In the far background, partially obscured by mist, a large, sleek black silhouette of a futuristic warship. Its design should be alien to the Viking era - smooth lines, no sails, possibly hovering. Emits a faint, eerie glow.
Overall Effect: At first glance, appears as a classical Viking battle painting. Closer inspection reveals the anachronistic, unsettling presence of the future ship, seamlessly integrated into the historical scene.
Maintain high resolution and detail throughout, allowing for close examination of both historical and futuristic elements.
